Tabulator for type-writers.



PATENTED FEB. 25, 1908.

W. R. FOX. TABULATOR FOR TYPE WRITERS.

APPLICATION FILED JUNE 7.1907.

2 SHEET SSHEET 1.

witnesses No. 880,290. I PATENTED FEB. 25, 1908.

W. R. POX.

TABULATOR FOR TYPE WRITERS.

APPLICATION FILED 11mm, 1907.

2 SHEETS-SHEET 2.

WILiiiAM R. FOX, or GRANDRAPIDS, MICHIGAN.

TABU'LATOR FOR TYPE-WRITERS Specification of Letters Patent.

Patented Feb. 25, .1908.

Application filed June-7. 1907. Serial No. 377.761.

To aZZ whom it may concern:

Bait known that 1, WILLIAM R. Fox, a citizen of the United States, residing at the city of Grand Rapids, county of Kent, State of Michigan, have inventedcertain new and useful Improvements in 'Tabulators for Type-Writers, of which the following is a specification. g

This invention relates to improvements in tabulator mechanisms for typewriters.

The objects of this invention are,first, to simplify and increase the efiiciency of such devices, and at the same time provide an effective control of the released carriage to prevent its striking the stop with a violent low,'which of necessity increases the wear and tear on the machine; Second, to provide an improved construction and arrangement of parts for actuating the stop means, whereby the same will be moved yieldingly into position. Third, to provide an improved construction and combination of parts whereby the release of the carriage is definitely controlled, in relation to the other parts. Fourth, to provide an improved construction of the brake or controller means for properly retarding or controlling the carriage after it is released.

Further. objects, and objects pertaining to detailsof construction, will definitel appear from the detailed description to fol ow.

I accomplish the objects of my invention bythe devices and means described in the following specification.

The invention is clearly defined an pointed out in the claims.

The portions of a typewriter necessary to roperly describe and understand all of the. eatures of my invention are sufficiently illustrated in .the accompanying drawing, forming a part of this specification, in which,

Figure 1 is a detail rear elevation view of portions of a typewriter with my improved tabulator means in place, parts being broken away; Fig. 2 is a side elevation view, partially in section,'online 22 of Fig; 1, showing the lower portion of my improved mechanism, the position of the typewriter frame being indicated merely by dotted lines; Fig. 3 is anenlarged detail transverse sectional view on line 33 of Fig. 1, showing the brake or controller mechanism in its relation to the driving drum of the carriage; Fig. 4 is anenlarged detail sectional view taken on a line corresponding to line 44 of Figs. 2 and 3; Fig. 5 is an enlarged detail way and sectional view through the brake or .con'

troller mechanism, taken on a line corre-- sponding to line.55 of Figs. 1,2, 3 andZ-t;

Fig. 6 is a detail section view on line 6-6 of Fig. 1, showing the rock shaft arm 20 and its relation to the stop bar; Fig. 7 is a detail.-

sectionalview on line 77 of Fig. 1, showing further details of the parts illustrated in Fig. 6," Fig. 8 is a detail sectional view on line 88 of Fig. 1, through the escapement device and'jp'arts there illustrated, and Fig.

9 is a detail sectional view taken on line 9-9 of Fig. 2.

In the drawing, all of the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and similar numerals of reference refer to similar parts throughout the several views.

Referrin to the reference numerals of 'the drawing, t e main frame 1, the carriage 2 with its feed rack 3 and escapement wheel and rack 4 are of the form commonly used in Fox typewriters, as clearly-illustrated in my Patent No. 839,129, issued to-me on the 25th not need to be more fully or particularly described here, the escapement wheel being controlled by escapement dogs 55 exactly similar to the escapement dogs appearing in my said patent and suzpported in the same eing actuate y the usual means for actuating such escapement dogs. r The various parts of my improved tabulator mechanism are connected to and'actuated 'bythe transverse rock shaft 6. An

arm 7 extends downwardly therefrom and is held normally towards the front of the machine by the vcoiled spring 8. A push rod 9 extends out throu h the toe-plate 11 of the frame and is provi ed with a push button 10. A stop'collar 9 abuts against the inner side of December, 1906, for tabulator, andof the toe-plate and serves as a stop to limit the movement when pressure is released from the button 10 to permit the spring 8 to throw all of the parts to the inoperative position.

A pivot lock piece 12 with a notch 12 is arranged to engage back of the stop collar 9 to lock the mechanism and prevent its accidental operation. This is of great advanta e in avoiding interference with the machine by meddlesome persons in the absence of the operator.

In the actuation of the device, the stop bar 21 with its pointed upper end 25 is arranged in suitable guides in the back part of the frame 1, and is elevated by the rock shaft spring 2 1, which is secured to'the underside o the rock shaft arm 20. The notched bar a 26, carrying the tabulator stops 27, is arranged on the carria e so that the stops 27' co-act with this sto ar 21 when it is raised into position. A. p urality of stops 27 is rovided, so that by placing the same at di erent points on the bar 26, a plurality of columns can be made.

' when it raised, strike one of the stops 27,

the spring 24 will yield so that the remainin parts of tabulator mechanism will be allowed to operate, and the stop 27 will move off from the bar '21 when the carriage is released. A lever 17 with a beveled finger 19 acts I upon the inner escapement dog 5 to release the carriage, the lever 17 being pivoted on the pivot 18 on the escapement dog rock shaft 18, These parts act the same as those of my patent above referred to for releasin the dog. This lever 17 is connected by a re 14 to a rock shaft arm 13 on the rock shaft ,6. Lost motion and adjustment is provided for by screw threadin the lower end of this rod .14, and applying ock stop nuts 15-16 on the rod each side of the said arm, which is perforated to receive the lower end of the rod. This lost motion is provided for so that the stop bar 21 will beelevated before the carriage is released.

To control the carriage, there is the usual spring drum 39, the opposite sides ofwhich I make flat in order that a brake mechanism maybe applied thereto. The brake mechanism is actuated by an arm 28 on the rock shaft 6, which carries a pivoted arm.29 that is provided with wedge 0r cam shaped projections 30-30 for acting upon the brake arms.- The brake arms are sup orted one. fixed arm or shaft 31 secured to t e frame 1,

the arms or members 32-33 being sym-.

metrical and'pivoted on the shaft or red 31 andarranged to pinch or press against the e 39 so as not to,

opposite sides of the who dlsturb it upon its-bearing. So that this may be accomplished without strainon the bearing of the spring drum, and so that a action will be secured, the I mere retardin arm 32 is provlded with lugs32 on opposite sides, which contain elognated holes 32,

which embrace the rod 31; and the arm. 33

has corres onding lugs or ears 33' with elongated roles 33". The arms 32-33 are held towards each other yieldingly by a rod 34, adjustable by means of a screw 35, a

coiled s ring 36 being on the outer end of the rod an retained in place by the cotter pin 37. These brake pieces are provided with onto the sprin Should the bar 21;

-sisting of a pair of arms or mem 'leather or felt faces 38-38. This spring device is below the shaft 31, so'that, when the cam faces 30-30are withdrawn from between the outturne'd ends .of the arms 32-33, it will draw the arms towards each other; and, when this c'amface is completely removed, the shaft 31 will contact at the ends of the slotted 0r elon ated holes with the ears32, 33", the sai arms will fulcrum thereon, and the spring will then serve to releasethe brake and permit thespring drum and carriage to move freely.

When the cam faces are pushed up, they act on the arms, close thesides of the brake drum," and then separate them from their bearin shaft 31, so that they act equally on-eac side-of the drum, and consequently have no tendency to lateral stress or strain on its hearing. I

- I have described this invention in the form which I have found by experience. and experiments to be very satisfactory and effective. I desire to remark, however, that the mechanism may be considerably varied in its details without departing from my invention.

The timing and relation and actuation of the parts from a single button, as I have shown, would. be of advantage with otherforms of sto release and brake mechanism, out obvious y it is especially well ada ted for use with the particular means I ave shown.

I The brake mechanism I have shown is of special advantage, for the'reasons that I have indicated, and Ishall desire to claim the same broadly in connection with any stop and release mechanism.

Having what'I claim as new and desire to secure by Letters Patent is:

'1. In a tabulator mechanism for typewriters, the combination of the main frame 1 of the typewriter; a carriage 2 thereon; an escapement mechanismfor the carriagefa stop bar 26 on said carriage with adjustable stops 27 thereon; a rock shaft 6 arranged transversely through the main frame; a movable stop bar 21 withv tapered 'oint arranged in guides on the frame 1 o the typewrrterin position to be moved into 0 erative relation with the stop or stops on whereby therelease mechanism is timed to operate subsequent to the elevation of the stop bar 21; a spring drum 39 for actuating the'carriage; a brake mechanism for engaging theopposite faces of the said sprinidrum, coners 32-33 sup orted on a fixed shaft 31 by the said shat extendingthrough slotted holes in said thus described my invention,

seems arms; adjustable spring devices for holding the said arms normally towards each other; an arm ZS-on the rock shaft 6 ;'a pivoted arm 29 on the rock shaft arm 28 carrying wedge or cam-shaped members 303 0 to act 11 on the arms of the brake rneclrienism time to act simultaneously with the release mechanism; a downwardly --.depending rock'shaft ing rook shaft. arm".

farm '1! on the rock shaft 6; .a' s'pring'fi for 1 of tie typewriter; a carriage 2 thereon;-

escapernent mechanism for the carriage; a stop her 2-6 on said carriage-With adjustable stops 2'] thereon; a rock shaft ti arranged transversely through main frame; a movehle stop her 21 with tapered ioint arranged in guides on the frame 3. oi the typewriter in position .to 'he moved" into operative relation with the stop or stops on the said carriage; a release lever or means 17 to act upon the escapernent and release the car image; an arm 18 on'the rock shart; a-rod 14 connected to lever 17 and extending through it perforetionin the erm 13; adjustable steps and-15 on therod 1 L,- wh-erebythe release mechanism is timed to" operate subsequent to the eleyationoi thestop bar 21; a s ring drum 39 for actuating the carriage; a rake mechan smior engaging the QPP Site facesof' the said spring drum, consisting of. a pair of arms or members 32-33 supported-on a fixed shaft 31 by the said shaft extending through slotted holes in said arms adjustaole spring devices for hold ng the said arrns'normally towards each other; an 'arm'28 ongfthe rock shaft 6; a

- pivfot-ed arm 2-9 on the deck shaft armj28 carrying wedge or cam-shaped members .30 j-3 0 to act upon the arms oi the -,brake mechanism timed to act- "simultaneously with the release mechanism downwardly-depend- ,on ther'ock shaft 6; a

spring for throwing the same normally forh v. ward; afpu'sh rod :9 with a button 10 at its -forwardjend for actuating the said tabuiator mechanism g 'andv a stop means for limiting itsjmovement', all coactmg substantially as described andfor the purpose specified.

' 3-; In a; tebulator 'mechanism for type- I writers,"the combination of the-main frame -11 of thetypewriter; a carriage 2 thereon; an

escapenientmechariism for the carriage; an

{adjustable s'top'meansfon the said carriage;

iefrockshaft: arranged transversely through the main frame; a .movahle stop means actuated from said rock shaft; a release means for the oscapement; an arm on the rock shaft with connections from the release means thereto; a spring drum 39 for ectuating the carriage; a brake mechanism for engagingthe opposite faces of the said spring drum consisting of a pair of arms or members 3233 supported on a fixed shaft 31 by the said shaft extending through slotted holes in said 'arms; adjustable sprin s devices for holding the said arms normally towards each other; ,an'arin 28 on the rock shaft 6; a pivoted arm 29 on the rock siiaft arm 2-8 carrying wedge or cam-shaped members 3030 to act upon the arms of the brake mechanism timed to act simultaneously with the release mechanism; a downwardly depending rock shaft arm 7v on the rock shaft 6; a spring 8 for throwing the same normally forward; a push rod 9 with a button 10 at its forward end for actuating the said tabulator mechanism; and a stop means for limiting its'movement, all coacting substantially as described and for the purpose specified.

4 In a tabuletor [mechanism for typewriters, the combination of the main frame 1 of the typewriter: a carriage 2 thereon; anesoapernent mechanism for the carriage; an adjustable stop means on the said carriage; a rock "shaft arranged transversely through the main frame; a movable stop means actuated from said rock shaft; a release means for the'escapement; an arm on the rockshaftv with connections from the;

releese'means thereto';-a sprin drum 395 for eetuatmg the carriage; a bra re me'chan ism for engaging the opposite faces of the .said'spring drum, eonsisting of a pair of arms or memliers 32 -33 su ported on a fixed .shaft 31 b the said she t extended through slotted ho es in said arms; adjustable spring devices for holding the said arms normally towards each other; an arm 28 on the rock shaft 6 a pivoted arm 29. on the rock shaft ..arm-28 carrying wedge orv cam-shaped mem- 'bers. 30 30to act upon the arms. of the brake mechsnism. timed to act 's'imultane ousiywith the release mechanism; a downwardly-depending rock shaft arm- 7 on the rock shaft 6 a spring forthrowing the same normally forward; a push rod. with a button 3.0 at itsforward end for actuating the saidtahulator mechanism; and a stop means for limiting its .movement, all coacting substantially as described and for the purpose specified. I '1' 5'; In a tabulator mechanism for typewriters, the combination of the main frame '1 of the typewriter; a carriage 2 thereon; an

escapernentmechanism for the-carriage; an adjustable'stop means; a releasemeans to act upon'the' escapement a brake means for eontrollingithe movement of the carriage; a rock shaft 6 arranged transversely through the main frame; connections from said rock shaft to the said stop, release and brake mechanism; a downwardly-depending rock shaft arm 7 on the rock shaft 6; a spring 8 for throwing the same normally forward; a push rod 9 with a button 10 at its forward end for actuating the said tabulatormechanism; a stop collar 9 on the rod 9 for limiting its movement; and a notched lock plate 12 for engaging the stop collar 9 to secure the mechanism against accidental operation, all coacting substantially as described and for the purpose specified.

6. In a tabulator for typewriters, the combination of a stop mechanism consisting of the stop bar 21, the rock shaft 6, the arm 20 on said rock shaft notched on'its under side at 22, a pivot pin on the lower end of said stop bar resting in said notch, and a spring on the under side of the said rock shaft arm for holding the said stop bar yieldingly upward, coacting for the purpose specified. r 7. In a tabulator for typewriters, a stop mechanism consisting of a series of stops on the carriage; a stop bar 21, a rock-shaft 6, an arm 20 on said rock shaft for moving said stop bar transversely into the path of the said stops on the carriage, and. a yielding connection between said rock shaft arm and the said step bar, coacting for the purpose ranged arms or bra re memers 32.33

loosely pivoted together by slotted apere tures 32"33 in cars '3233 thereon, a

shaft 31 in said apertures) an adjustable spring mechanism for holding the said arm yieldingly together, whereby the arms will act on the pivot as a fulcrum for opening the said arms, a pivot plate 29 with a cam part 3030 to be forced between the ends of said brake arms for actuating the same, and a'rock shaft with an arm- 28 carrying the pivot plate 29, coacting for the purpose specified. f

9. In a tabulator for typewriters, a brake mechanism consisting of a spring drum 39 for driving the carriage,-the oppositely-arranged arms or brake members 32 and 33 loosely pivoted together by slotted apertures 32-33" in ears 323 3 thereon, a'

shaft 31 in said apertures, a spring mechanism for holding the said arms yieldingly together, whereby the said arms will act on the pivot as a fulcrum for opening the said arms, a 'pivot plate 29 with the cam part 3'O30 to be forced between the .ends of said brake arms for actuating the same, and a rock shaft with an arm 28 carrying the i-pivot plate. 29,- coacting for the purpose specified. v

10. In a tabulator for typewriters, a brake mechanism consisting of a spring drum 39 for driving the carriage, the-opposittely-arranged arms or brake members 32 and 33 loosely pivoted together by slotted aper tures 3233-- in cars 3233 thereon, a shaft 31 in saidapertures, a spring mechangether, whereby the said arms will act on the pivot as a fulcrum for opening the said arms, and a pivot plate 29 with the cam part 3030 to be'forced between the ends of said brake armsfor actuating the same, coacting for the purpose specified.

11. In a tabulator for typewriters, a brake mechanism consisting ofa spring drum for driving the carriage, the oppositely-arranged arms or brake members pivoted on a spitable support and arranged to embrace the opposite faces of said drum, a spring for holding said members yieldi-n ly open, and a pivoted cam means suitaby connected for operating the said members to cause them to drum, all coacting for the purpose specified.

12. In a tabulator for typewriters, a brake mechanism consisting of a spring drum for driving'the carriage, the oppositely-arranged port and arranged to embrace the said drum, a spring for holding said members yieldingly open, and a cam means suitably .connected for operating the said members to cause them to yieldingly grasp the opposite i pose specified.

13. In a tab'ulator for typewriters, the combination of a brake mechanism consisting of oppositely-arranged arms loosely piv- Witnesses- WILLIAM R. FOX. [1.. s.] Witnesses:

ELLA DE VRIEs, LELIA BLAIN.

ism for holding/the said arms yieldingly toyieldingly grasp the opposite faces of the arms or brake members on a suitable sup-' faces of the drum, all coacting for the puroted on a suitable support; a spring for 

